Local compile results in error

[weynandkuijpers]

Following the instructions provided in the README, the cargo build compile command failed:

error: older versions of the `wasm-bindgen` crate are incompatible with current versions of Rust; please update to `wasm-bindgen` v0.2.88

   Compiling pin-project-internal v1.0.12
error: could not compile `wasm-bindgen` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...